Hi Kim,
thanks for your feedback so far. Unfortunately without any luck so far.
Appearantly the session is only saved for the time the servlet call is
running and not for the time
I've tried 2 different setups.
I've eight servlets which all extend BaseServlet e.g. AServiceImpl and
BServiceImpl etc.
For my first approach I've created a class variable HttpSession which is a
property of BaseServiceImpl and accessible by the getSession method.
protected HttpSession getSession() {
if(session==null)
session = this.getThreadLocalRequest().getSession();
return session;
}
For the second approach i've removed the session variable of the
BaseServiceImpl class and changed the getsession as below.
protected HttpSession getSession() {
return this.getThreadLocalRequest().getSession();
}
Unfortunately both solutions didn't work.
i've also a session listener implemented which is below. Maybe this is
causing the issue?
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
public class SessionListener extends BaseRemoteServiceImpl implements
HttpSessionListener {
public void init(ServletConfig config) {
}
/**
* Adds sessions to the context scoped HashMap when they begin.
*/
public void sessionCreated(HttpSessionEvent event) {
HttpSession session = event.getSession();
session.setMaxInactiveInterval(3);
ServletContext context = session.getServletContext();
Map<String, HttpSession> activeUsers = (Map<String, HttpSession>)
context.getAttribute("activeUsers");
if (activeUsers == null) {
activeUsers = new HashMap<String, HttpSession>();
context.setAttribute("activeUsers", activeUsers);
}
System.out.println("Session created: " + session.getId());
activeUsers.put(session.getId(), session);
}
/**
* Removes sessions from the context scoped HashMap when they expire or are
* invalidated.
*/
public void sessionDestroyed(HttpSessionEvent event) {
HttpSession session = event.getSession();
System.out.println("Session destroyed: " + session.getId());
ServletContext context = session.getServletContext();
Map<String, HttpSession> activeUsers = (Map<String, HttpSession>)
context.getAttribute("activeUsers");
if (activeUsers != null) {
activeUsers.remove(session.getId());
}
}
}
On 14 December 2011 21:40, kim young ill <[email protected]> wrote:
> no, this.getThreadLocalRequest().getSession() will create one if it doesnt
> exist yet. once created, u'll get the same session. if the request has a
> valid cookie which corresponds to a existed session, there'll no new
> session created.
>
> hth
>
> but if u call it at different place , due to threading, u'll prob. get
> different result. so call it once at the method which is also declared at
> rpc-client-interface & passe it around for your request scope.
>
>
> On Wed, Dec 14, 2011 at 4:15 PM, Appien <[email protected]> wrote:
>
>> Hi,
>>
>> i've several call to getsession in the implementaiton of
>> getcredentials. Does this mean the application creates a new session
>> everytime i do this call? find below my code of getcredentials. I've
>> changed the code so everytime a method of a servlet gets first the
>> session by using: HttpSession session =
>> this.getThreadLocalRequest().getSession();
>>
>>
>> HttpSession session = this.getThreadLocalRequest().getSession();
>> log.info("Invoking SecurityService");
>> final HashMap<String, String> returnedValues = new
>> HashMap<String,
>> String>();
>>
>> clearLoginVariables(session);
>>
>> BigInteger XXXNummer = null;
>> // Check if a valid parameter is given
>> if (null != loginKey) {
>> loginKey = loginKey.toLowerCase();
>> final IsValidKey loginWaarden =
>> getLoginValues(loginKey);
>>
>> if (null != loginWaarden) {
>>
>> XXXNummer = loginWaarden.getXXXNummer();
>> if (XXXNumber != null) {
>>
>> returnedValues.put(EfConstants.GAUSER, "" +
>> loginWaarden.getXXXNumber());
>> } else {
>> log.warn("XXX Number not found for
>> loginkey :" + loginKey);
>> }
>> if (null !=
>> loginWaarden.getAbonnmentscode()) {
>>
>> returnedValues.put(EfConstants.GAROLE,
>> loginWaarden.getAbonnmentscode());
>> } else {
>> log.warn("XXX Role not found for
>> loginkey :" + loginKey);
>> }
>>
>> } else {
>> log.warn("LoginService did not return a
>> valid result for key: " +
>> loginKey);
>> }
>> // IF no parameter is in the url get the xx
>> variable and
>> } else {
>>
>> String XXXNumberString = getXXXNumber(session);
>> if (XXXNumberString != null) {
>> XXXNumber = new
>> BigInteger(XXXNumberString);
>> returnedValues.put(EfConstants.xxxx,
>> XXXNumber.toString());
>> } else {
>> log.warn("XXX Number not found by getting
>> headers :" + loginKey);
>> }
>> if (getXXXRole(session) != null)
>> returnedValues.put(EfConstants.xxx,
>> getXXXRole(session));
>> else
>> log.warn("XXX Role not found by getting
>> headers :" + loginKey);
>>
>> }
>> if (XXXNumber != null) {
>> log.info("XXX Member: " + XXXNumber + " logged
>> in.");
>> xxx response = getxxxData(XXXNumber,
>> getXXXRole(session));
>> determineFormAccess(response);
>> }
>> // Add the variables to the session
>> if (returnedValues.get(EfConstants.GAUSER) != null) {
>> addToSession(session, EfConstants.xxx,
>> returnedValues.get(EfConstants.xxx));
>>
>> if (returnedValues.get(EfConstants.xxxx) != null) {
>> addToSession(session, EfConstants.xxx,
>> returnedValues.get(EfConstants.xxx));
>> }
>> } else {
>> log.warn("Session invalid");
>> invalidateSession(session);
>> }
>>
>> return returnedValues;
>>
>>
>>
>> On Dec 14, 2:44 pm, kim young ill <[email protected]> wrote:
>> > in your securityServiceImpl.getCredentials() you should get Session via:
>> > getThreadLocalRequest().getSession(), then pass it to
>> >
>> > addToSession(HttpSession session, String label, Objectval)
>> > you here u have session, why called getThreadLocalRequest().getSession()
>> > the second time ?
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Wed, Dec 14, 2011 at 2:18 PM, Appien <[email protected]>
>> wrote:
>> > > Sure!
>> >
>> > > Please find below my Web.xml
>> >
>> > > <?xml version="1.0" encoding="UTF-8"?>
>> > > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web
>> > > Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";>
>> >
>> > > <web-app id="WebApp">
>> > > <display-name>ElecForms</display-name>
>> >
>> > > <listener>
>> >
>> > > <listener-class>xx.xxx.ef.server.SessionListener</listener-class>
>> > > </listener>
>> >
>> > > <!-- Servlets -->
>> > > <servlet>
>> > > <servlet-name>glsService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.GlsServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>formService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.FormServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>pcsService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.PcsServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>mapService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.MapServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>settingsService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.SettingServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>securityService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.SecurityServiceImpl</servlet-class>
>> > > </servlet>
>> > > <servlet>
>> > > <servlet-name>pdfService</servlet-name>
>> >
>> > > <servlet-class>xx.xxx.ef.server.PdfServiceImpl</servlet-class>
>> > > </servlet>
>> >
>> > > <servlet-mapping>
>> > > <servlet-name>pdfService</servlet-name>
>> > >
>> <url-pattern>/electronicformsjboss/pdfService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>glsService</servlet-name>
>> > >
>> <url-pattern>/electronicformsjboss/glsService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>formService</servlet-name>
>> > >
>> <url-pattern>/electronicformsjboss/formService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>securityService</servlet-name>
>> >
>> > > <url-pattern>/electronicformsjboss/securityService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>pcsService</servlet-name>
>> > >
>> <url-pattern>/electronicformsjboss/pcsService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>settingsService</servlet-name>
>> >
>> > > <url-pattern>/electronicformsjboss/settingsService</url-pattern>
>> > > </servlet-mapping>
>> > > <servlet-mapping>
>> > > <servlet-name>mapService</servlet-name>
>> > >
>> <url-pattern>/electronicformsjboss/mapService</url-pattern>
>> > > </servlet-mapping>
>> >
>> > > <session-config>
>> > > <session-timeout>30</session-timeout>
>> > > </session-config>
>> >
>> > > <!-- Default page to serve -->
>> > > <welcome-file-list>
>> > > <welcome-file>test.html</welcome-file>
>> > > </welcome-file-list>
>> >
>> > > </web-app>
>> >
>> > > All these servlet extends a custom class called BaseRemoteServiceImpl
>> > > which extends RemoteServiceServlet.
>> >
>> > > On the onModuleLoad of the application the application checks if for a
>> > > certain parameter called login. The application does an RPC call with
>> > > the loginkey as parameter and checks if it is valid. If it valid, the
>> > > application stores it in the session. The getfromsession and the
>> > > saveinsession is a function in the BaseRemoteServiceImpl. Is it
>> > > possible that the values are not overwritten if the variable is
>> > > already stored in the session?
>> >
>> > > The onModuleLoad
>> >
>> > > securityService.getCredentials(Window.Location.getParameter("login"),
>> > > new AsyncCallback<HashMap<String, String>>() {
>> > > public void onFailure(Throwable arg0) {
>> > > new AlertDialog(EFCONSTANTS.Error() +
>> > > arg0.getMessage()).show();
>> >
>> > > }
>> >
>> > > public void onSuccess(HashMap<String, String>
>> > > creds) {
>> >
>> > > if (creds.get(EfConstants.USER) !=
>> null &&
>> > > creds.get(EfConstants.USER).trim().length() > 0) {
>> > > waitBox.hide();
>> > > HomePage homePage = new
>> HomePage();
>> > > homePage.init();
>> >
>> > > } else {
>> > > waitBox.hide();
>> > > new
>> > > AlertDialog(EFCONSTANTS.NoAccess()).show();
>> > > }
>> > > }
>> > > });
>> >
>> > > SaveInSession function
>> >
>> > > protected void addToSession(HttpSession session, String label,
>> > > Object
>> > > val) {
>> > > // Reset parameters in session.
>> > > //log.info("Saving in sessionid: " +
>> > > getThreadLocalRequest().getSession().getId() + " - label: " + label +
>> > > " - val: " + val.toString());
>> > > session.setAttribute(label, val);
>> >
>> > > }
>> >
>> > > GetFromSession function
>> > > protected Object getFromSession(HttpSession session, String
>> label) {
>> >
>> > > if (session != null)
>> > > return session.getAttribute(label);
>> >
>> > > return null;
>> > > }
>> >
>> > > Please let me know if you need more information. Many thanks!
>> >
>> > > On Dec 14, 2:04 pm, kim young ill <[email protected]> wrote:
>> > > > can u post some more code ? a bit more information would be more
>> > > helpfull
>> >
>> > > > On Wed, Dec 14, 2011 at 2:01 PM, Appien <[email protected]>
>> wrote:
>> > > > > Unfortunately this didn't work either. It is possible that is has
>> > > > > something to do with having multiple servlets which trying to use
>> the
>> > > > > same session?
>> >
>> > > > > For one part of the functionality it works as it is calling the
>> same
>> > > > > servlet twice...
>> >
>> > > > > On Dec 14, 9:13 am, kim young ill <[email protected]> wrote:
>> > > > > > try to get Request from your rpc or rf public-implementation &
>> pass
>> > > it to
>> > > > > > getFromSession()
>> >
>> > > > > > Wed, Dec 14, 2011 at 7:51 AM, Appien <[email protected]>
>> > > wrote:
>> >
>> > > > > > > The thing is that I use the local I use the built-in Jetty
>> server
>> > > of
>> > > > > > > GWT as development server. In the end the application will
>> run on
>> > > > > > > JBoss. For now I want to have it working on Jetty. I've
>> searched
>> > > the
>> > > > > > > web, but I couldn't find Jetty session configure anywhere.
>> >
>> > > > > > > On Dec 13, 3:19 pm, Ed <[email protected]> wrote:
>> > > > > > > > This has nothing to do with GWT.
>> > > > > > > > Check your documentation of your servlet container.
>> > > > > > > > Your web container is responsible for session management
>> and not
>> > > > > > > > touched by GWT.
>> >
>> > > > > > > > You can check your session id in Chrome or FF (FireCookie)
>> > > > > development
>> > > > > > > > tools.
>> > > > > > > > Note: a session id is stored in a cookie (most of the
>> times) and
>> > > a
>> > > > > > > > cookie is attached to a domain (check your domain usage).
>> > > > > > > > - Ed
>> >
>> > > > > > > > On Dec 13, 2:48 pm, Jens <[email protected]> wrote:
>> >
>> > > > > > > > > Normally this should work out of the box with your servlet
>> > > > > container I
>> > > > > > > > > guess.
>> >
>> > > > > > > > > Do you have a valid JSESSIONID cookie (or a similar named
>> > > cookie
>> > > > > that
>> > > > > > > holds
>> > > > > > > > > the server session id) set in your browser and will it be
>> > > > > transmitted
>> > > > > > > to
>> > > > > > > > > your servlet container (try to log request.getCookies())?
>> >
>> > > > > > > > > -- J.
>> >
>> > > > > > > --
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